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<font color="black" size="2" face="Arial, Helvetica, sans-serif">Hi. </font><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">I'm Dan Weiss, live in Herndon and have owned a 69 vert for about 5 years.</span></div>
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<div id="AOLMsgPart_2_7989ed37-c74a-48e0-bf65-a1289aecf439"><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">This is my first post to the group I think. I may have done so four or five years ago, but fell out of touch. Recently attended last month's meeting at Ron's, and got back in touch with a few of the group's patriarchs as I was seeking some advice and opinions on work that had been done to the car. Little did I know how much I would be in need of the group's expertise in the very near future.</span></div>
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<div id="AOLMsgPart_2_7989ed37-c74a-48e0-bf65-a1289aecf439"><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Done a fair amount of work on cars peripheral to engines, and the current condition of the car will take me into new territory.</span></div>
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<div id="AOLMsgPart_2_7989ed37-c74a-48e0-bf65-a1289aecf439"><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Recently the Ranch found a loose head stud under the intake rocker arm of the number 2 cylinder. It had a significant lose of power in lower RPM range, rough idle and blew blue smoke. Here is a pic of what they found:</span><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">. </span></div>
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<div class="envelope" align="left" style="float: none;"><img src="cid:AOLP.1074140" width="275" id="TIE.1074140" style="margin: 5px; vertical-align: middle;" alt="drvr valve train.JPG" class="AOLInlineImage" title="drvr valve train.JPG"></div>
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Jeff mentioned the valve guide was very worn.</div>
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<div>Car ran great. A couple of the club members synced the carbs at Ron's meeting last month. Can ran even better.</div>
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<div>Then one day last week while driving in second at about 40 MPH, a knock started with loss of power and smoothness. Bryan Blackwell suggest a leak down test; Bob Marshall suggested a compression test. </div>
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<div>Pulling one plug wire at a time, removing the wire for #2 Cyl produced no difference, so it seemed the problem was the same cylinder the Ranch found in need of some attention.</div>
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<div>Compression test was done on each cylinder. First test was without having throttle open (forgot about that); second test was with throttle open for each cylinder. Open throttle produced a range of 2 to 7 additional PSI of compression.</div>
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<div>Here are readings:</div>
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<div>CYLINDER<span class="Apple-tab-span" style="white-space:pre"> </span>FIRST TEST<span class="Apple-tab-span" style="white-space:pre"> </span>SECOND TEST</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>2<span class="Apple-tab-span" style="white-space:pre"> </span>0<span class="Apple-tab-span" style="white-space:pre"> </span>0</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>4<span class="Apple-tab-span" style="white-space:pre"> </span>143<span class="Apple-tab-span" style="white-space:pre"> </span>145</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>6<span class="Apple-tab-span" style="white-space:pre"> </span>150<span class="Apple-tab-span" style="white-space:pre"> </span>157</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>1<span class="Apple-tab-span" style="white-space:pre"> </span>140<span class="Apple-tab-span" style="white-space:pre"> </span>143</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>3<span class="Apple-tab-span" style="white-space:pre"> </span>157<span class="Apple-tab-span" style="white-space:pre"> </span>164<span class="Apple-tab-span" style="white-space:pre"> </span></div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>5<span class="Apple-tab-span" style="white-space:pre"> </span>151<span class="Apple-tab-span" style="white-space:pre"> </span>156</div>
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<div>Onto the leak down test.</div>
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<div>Did the best I could to get cyl #2 to TDC by aligning the rotor under the cap with the #2 contact. First attempts read close to 100%. Further adjustment seemed to tighten things up and tests consistently read right on the yellow and red section divider at about 71% cylinder leakage. I made sure to turn the regulator so the gauge read 0% before connecting it to the cylinder. The gauge immediately read 71% leakage and stayed right there. I turned the regulator clockwise to allow for airflow from the compressor, and the air was flowing out the exhaust pipe. What surprised me was that if I did achieve TDC, with the air leaking out the exhaust, I thought the rocker arm in the pic would have been with the exhaust valve, but as you all already know, that is the intake valve.</div>
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<div>Does it seem that the leak down test was done correctly? </div>
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<div>Obviously, regardless of the leak down test, the head has to come off to be replaced or repaired. I plan to pull the valve cover off to see what may be going on under there tomorrow or Saturday..</div>
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<div>A couple of the Clarks techs suggested a dropped valve seat given the symptoms. Given that and the worn valve guide identified by Jeff, it seems that the best strategy might be to get hold of a good used head for a 110 and get my hands dirty with with the help of a few more knowledgeable if anyone is so inclined.</div>
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<div>Any thoughts or suggestions from anyone in the group would be greatly appreciated.</div>
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<div>Thanks.</div>
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<div>Dan</div>
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